Device for removing moisture from flexible strip material



P 6, 1932- G. L. BROWNELL 1,875,701

DEVICE FOR REMOVING MOISTURE FROM FLEXIBLE STRIP MATERIAL Filed Nov. 14, 1929 2 Sheets-Sheet l Sept. 6; 1932. G. BROWNELL DEVICE FOR REMOVING MOISTURE FROM FLEXIBLE STRIP MATERIAL Filed Nov. 14, 1929 2 SheetsShee I I B .6. z

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Patented Sept. 6, 1932 UNITED srATEs I GEORGE L. BROWNELL, OE WORCESTER, MASS-ACI-I'USE'ITS DEVICE FOR REMOVING MOISTURE FROM FLEXIBLE srEIr-iMArEEIAr.

The present invention relates to a" device for removing moisture from the surfaceof flexible strip material, the device'of the pres ent invention being'particularly adapted for removing excess moisture fromboth sides of a moving strip of flexible material that has just passed through a bath of .liquid'which adheres to the strip. 7 f

"While the device of the present invention is not limited for use in connection with any particular machine or method" of manufacture, it has particular utility in connection with the treatment of a moving strip of paper,

or cloth, with a suitable liquid adhesivelor size prior to the strip being 'twisted into a filament. When so twisting a strip having adhesive applied thereto, it is essentiallthat excess moisture in theform of adhesive be removed from the strip, on both sides, so that 29 onlyenough adhesiverema'ins'to insure the necessary binding of the stripas it is'twisted.-

The above and other advantageous featuresof my invention will hereinafter more fully appear with reference to theaccompanying drawings, in which I ,Fig. l is a view partially in section, and partially in side elevation, of a moisture re moving device embodying the invention, the

moving strip of material. I Fig. 3 is a plan view of-the partsshbwn in Fig. 1.

ing certain details of the device.

Like reference characters refer to like parts in the different figures.

vReferring first to Fig. 1, the moisture removing device is shown in connection-witha receptacle 1 for containing a suitable liquid adhesive 2 such as'glue, mucilage, or-a suit able liquid size with which it is'desired to coat a strip 3 of flexiblemateriahsuch as paper a suitable supply, not shown, the strip passing partially around a guide rod 4 in thedi-j rectionof the arrow and leaving the device in a generally downward directionafter pass ing through the adhesive receptacle 1 and be parts being shown in an inoperative position. Fig. 2 is a view similar'to'Fig. 1 illustrating the parts in position'to operate on the a H i position, the unbalancedweight of therod Fig. 4 is a fragmentary sectional vi or cloth. The strip 3 isled to the device from ing acted upon by the moisture removingde} vice.

The moisture removing device is supported. by a frame member 5 extending along the I receptacle 1, the frame member 5 carrymga bracket "6 adju'stably secured thereto by means'ofbolts 7 received in slots'8 provided in the bracket 6. As" best shown in Fig.3,

thebracket 6 provides spaced arms 9 and 10 V of different length between which is mounted 6 a shaftllcarrying'a roll 12. The shaft 11 also serves to pivotally support iaj'bell-crankj lever, one arm 13a ofwhich carries arod 14- at its free end. The other arm 13b".ofthe' bell-cranklever carries apin 15 nearits free. end, the purpose of which is to maintain the rod 14 in aninop'erative', or operative, posi-Q tion with respect to the stripq3fand the re-.- ceptacle l'containing the adhesive 2 j ,As, best shown in Fig. 1, when the device is in inoperative condition, the lever arm 13?) is held in a nearly vertical position in which the rod 14 at the end of the other arm 13a is raised above the receptacle 1 with its lower surface just "in engagement with the upper- 76"- surface of the strip 3 as it passes" from the guide rod 4. 'The'lever arm 13b is main; tained in this position by the reception of the pin 15 in a notch 16 provided by a latch lever" 17 pivotally mounted on the long arm 9 of the bracketb by the stud 17a. In this the notch 16, whereupon the lever arm 13a is free to swing downwardly about the shaft 11 and carry the strip 3 into" the adhesive 2 carried by the receptacle 1., The position. a

then occupied bythellever arm 13aand rod 14 is shown in Fig. 2, fromwhicfhitfis evi dent that the strip 3 is carried down around v the stationaryroll l2 into the low nportion,

of the receptacle 1 so that a considerable (o3 length of the strip 3 is immersed in the adhesive 2. The rod 14 is adapted to be locked in this position by means of the pin 15 on the lever arm 135 being received in a second notch 18 provided in the latch lever 17 Obviously the notch 18 limits the downward movementof the rod 14 and so prevents the strip 3 touching'the bottom of the receptacle 1 and at the same time the pressure exerted by the latch lever 17 prevents the pull on the strip 3 from moving the rodl4= 11px wardly in the receptacle 1.

When thedownward movement of'the rod 14 carries the strip 3 into the low-er portion of the adhesive receptacle 1', it also moves the'strip into engagement with the free edge of'a'scrapi'ng blade 19carried by a cylindrical guide rod 20 extending parallel to and at'substantially thesame' height as the roll. .12. The rod 20 is cut away at one side to seats22 provided on opposite sides of a. slot 23 extending into the end of the long arm 90f the bracket 6,see Fig. 1. The split portions of the arm9 beyond the seats 22 are adaptedto be drawn together by means of a set screw 24 to cause the seats 22 to tightly engage thereducedportion 200; of the rod 7 20 and thereby securely lock the guide rod 20 against turn-ingafter the blade 19 has been set at the desired angle.

It is apparent from Fig. 2 that with the rod 14 holding the strip3 down inrthe receptacle- 1, the strip will be held in contact with the free edge of the blade 19, from which it passes around the periphery of the'rod 20 5 before leading downwardly to the machine for. twisting or otherwise operating on the moistened strip. Therefore, as the strip 3 is drawnfrom the receptacle 1, the under surface thereof in engagement with the blade 19 wi11 have all excess moisture removed therefrom, such excess moisture falling back,

intothe receptacle. Furthermore, the moist adhesive remaining-on the lower surfaceof the strip 3, after engagement with the blade 19, will be so evenly distributed that passage of the strip over the surface of the guide rod 20 will not tend to dry thestrip when once the rod itself becomes moistened.-

Atthe same time that the blade 19 is operating. to remove excess moisture fromj the under surface of the strip 3, a second blade 25 is. operating to remove excess moisture from.

the upper surface of the strip 3 as it emerges from the receptacle 1. This blade 25 is car ried by a rod 26 extending parallel to the rod 20, one side of the rod 26 being cut away.

to provide a;fiat-surface 26a against which theblade 25 is clamped by imeans of set screws' 2i' As best shown in Fig. 3, the rod 26 provides a reduced portion 28 tightly received in a bushing 29 turnable within an opening 30 provided near the end of the bracket arm- 9. While the bushing 29 is held against longitudinal movement within the opening 30 by means of a collar 31 held by a set screw 32, turning ofthe bushing 29 permits'the blade25 carriedfby the rod 26 to be moved into either an operative or inoperative position with respect to the strip 3.

As best shown in,Fig.14, the surface of the bushing 29 provides a notch 33 that is adapted toreceive'a ball 34 carried in anopening 35 formed in a boss36 projecting from the 'arm' 9. The ball34 is'forced into engagement with the, notch 33 by means of a spring 37 retained by a plug38, and the ball 341s adapted tohold the bushing 29 in such a po-- sition that the blade 25 is maintained but of engagement with the strip 3,as indicated in full lines in Fig. 4. The bushing 29 also provides another notch 39 that is adapted to receive the ball 34 when the blade 25 is turned.-

downwardly from its inoperative position of Fig. 1, to the position shown in Fig. 2 in which the free edge of the blade 25 engages the upper surface of the adhesive moistened strip 3. In turning the blade 25 from the po sition of Fig.1 into the position of Fig. 2,. enough force must be exerted to" cause the ball 34 to be unseatedfrom the notch 33 and obviously when the blade 25 has been turned. to engage a strip3 the' ball 34 will be seated into the other notch 39 thereby holding the blade 25 in itsscrapinglposition. r

Therefore, when both blades 19*and 25 are in engagement'with opposed surf'a ces of the strip "3, as shown in Fig.2, all the excess moisture will'b'e removed from the. strip as it is drawn between the blades and this action will continue so long as the -r0d14 presses the strip downwardly into the receptacle 1. When it is desired to discontinue operation of n the device, the blade 25 is first turned up wardly into the position shown in Fig. 1, this operation being readily accomplished by seizing the collar 31 and turning it until the ball 34 is seated in the notch 33. Thisposition will be indicated by a sudden increase in the resistance toturning the collar 31,.land ob viously the blade 25. will, be maintained in this inoperative position by pressure of the ball 34. The latch lever 17 is then turned up-- wardly'far enough to release the pin 15 from the'notch 18, whereupon the 'lever'arm 13?) can be freely turned to lift the roll 14 out. of the receptacle 1. The rod 14 can then be locked in its inoperativeposlition by seating the pin 15 in the outer notch 16 as indicated in Fig. 1. With theblade 25 and the rod 14 in these positions, a new strip 3 can'be fed down under the guide rod4and 'over the rod" 20 without engaging either of the scraping blades 19 or 25 and without'coming in 'coni I tact with the adhesive in the receptacleil,

Then when the new strip has been properly received in the machine for twisting or otherwise handling it, the stri can be quickly immersed in the adhesive 2 y unlocking the le- 5 ver arm 13?) and causing the rod 1 1 to carry a strip into the receptacle. The blade 25 can then be quickly moved into scraping position by turning the collar 31, this position being indicated by an increased resistance to turning when the ball 84 is seated in the notch 39. i

From the foregoing it is apparent that by the present invention there is provided an extremely simple and effective device for removing excess moisture from opposite sur- 15 faces of a strip of flexible material that has been previously drawn through a receptacle containing a suitable adhesive. The operation of the opposed scraping blades 19 and 25 eflectively prevents any excess mois- 20 ture in the form of adhesive being carried past the blades into the twister or other machine for operating on the strip, all excess moisture thus removed automatically drain ing back into the receptacle 1. I claim, 7 a

1. In a device of the class described, the combination with a fluid receptacle, a fixed scraper blade mounted above the receptacle, a rotatably mounted scraper blade and a roll mounted on a fixed axis above said receptacle and opposite to said blades, of a rod pivotally mounted on the same axis as said roll, said rod being turnable to immerse a strip of flexible material in said receptacle, means 3 for locking said rod to maintain said stri at a predetermined depth in said receptac e intermediate the points of engagement of its under surface with said roll and with the edge of said stationary, blade, and means for 4-0 maintaining said rotatably mounted blade in position to engage the upper surface of said strip adjacent to said fixed blade.

2. In a device of the class described, the combination with a fluid receptacle, a fixed scraper blade mounted above thereceptacle, a rotatably mounted scraper blade and a roll mounted on a fixed axis above said receptacle and opposite to said blades, of a rod pivotally mounted on the same axis as said roll, means for locking said rod in one position to, maintain a flexible strip immersed a predetermined amount in said receptacle with its opposed surfaces in engagement with the edges of said blades, and means for maintaining said rod in another position in which said strip may pass directly over said receptacle out of engagement with both of said blades, said rotatable blade being swung out of engagement with said strip in the second named position of said rod.

GEORGE L. BROWN ELL. 

